Mining and conveying machine



R. PEALE MINING AND CONVEYING MAGHINE Filed Dec. 29, 1919 5 Sheets-Sheet l VVVVVPV\VVV Feb, 7, 1928. 1,658,781

8 R. PEALE MINING AND CONVEYING MACHINE Filed Dec. 29: 1919 5 Sheets-Sheet 2 Feb. 7, 1928. 1,658,781

R.PEALE MINING AND CONVEYING MACHINE Filed Dec. 29. 1919 5 Sheets-Sheet 3 nin n ,n

@wf/@www Feb. 7, 1928.

R. PEALE MINING AND CONVEYING MACHINE Filed Deo. 29. 1919 5 Sheets-Sheet 4 Q mi F eb. 7, 1928.

R. PEALE MINING AND CONVEYING MACHINE Filed bec. 29. 1919 5 sheets-sheet 5 lamented Feb. 7, 1928.

UNITED STATES PATENT orricr..

HICLARD IJEALE, OF ENEDCT, PENNSYLVANIA, ,ASSGliTP.-, BY .MESIYE ASSGN- MENTS, T0. REMBLRANDT PEALE, XV. SANDERS DAVES, AND *WILLIAM El. 'WALLA.C,

TR "STEE MINNG- AND CONVEYING MACHINE.

Application tiled lecember 29, 1919, Serial No. el'.

'lhe invention relates to mining machines, and more particularly to mining and conveying machines.

rl`he objects and advantages of the present 5 invention will be set forth in part hereinatter, and in part will be obvious herefrom, orniay be Aearned through practice with the invention; the same being realized and attained through the instrumentalities and 10 combinations pointed out Vin the appended claims. y

rThe invention consists in the novel parts, constructions, arrangements, combinations and improvements herein shown and dell; scribed.

The accompanying drawings, herein ret'erred to and constituting a part hereof, illustrate one embodiment ot the invention, and together with the description serve to explain the principles thereof.

(lt the drawings:

Fic'. 'l is a plan, with certain parts in section, ot a machine embodying the invention;

Fig. 2 is an enlarged end elevation looking 5 at Fig. l. 'from the left.

. Fig. 3 is a 'fragmentary plan ot the left hand end of Fig. l showing parts that were cut out by the section in Fig. l;

Fig. is a fragmentary det-ail, on an enlarged scale and with parts in section, oa part ot rthe drive for 'the bar cutter, these parts being shown also near the center of ,F y

Fig. 5 'is a fragmentary detail View, on an 5;?, enlarged scale, with parts in section, of the top of the cutter bar guides and of the. drive Jfor the cutter bar, these parts being shown in plan at the top end of Fig. 3;

Fig, (3 is a fragmentary detail elevation on l an enlarged scale, with parts in section, o the translatory'driving means for moving the cutter bar bodily, being substantially on line -6 or' Fig. 3;

Fig. 'l' is an elevation, looking atFig. l irom the bottom ot the view or Fig. 2 trom the lett. showing the top cutter in position 'for cutting the top kerf simultaneously with the chain cutters cutting the bottom kerf.

Fig. 8 is a fragmentary elevation corresponding to the central lett hand partof Fi 2, and showing a height adjustment vrtor the top cutter and its bearings;

Fig. 9 is a diagrammatic elevationshowingl the complete cut is mace by the machine in "5 the coal seam;

Fig. l0 is a somewhat diagrammatic top plan looking down on the top of Fig. 9, but showing the machine in position after the bottom kert' is cut and While the top cutter is cutting;

F 11 is a like diagrammatic View showing the machine making simultaneous to and bottom cuts, like as in Fig. 7; i

Fig. l2 is adiagrammatic VAview looking down on the top of 11 and showing the coal breaking oil and being conveyed away by the conveyer;

Fig. 13 is an enlarged fragmentary detail of the telescoping driving shattr"or the top cutter;

Fig. la is a fragmentary detail `of 4the clamp for the top cutter, showing the same parts as the upper right hand corner of Fig. 5, but showing them in a central horizontal section; and l Fig. l5 is a detail viewshowing the combined sprocket wheel assembly +iand 6, and the crown gear 13.

The present invention in certain of its aspects may be regarded as an improvement uponor an addition tothe machine ot' my copending application S. N. 302,929 tiled June 9l- 1919, but in its broader-aspects the present invention may be embodied and utilized independently of said machine copending application. i y

,l'n the present embodied machine, a kert cutter cuts its way into the tace ol the vein, taking with it into the keri another cutter, which other cutter then cutsa second kert or a plurality of kerfs designed to further or entirely separate, or to cause the breaking away or', a body of coal from the vein. The x second kert cutter so introduced into the original kerf has translatory movement or travel preferably in three directions, and `thereby the two cutters cut thecoal free on four sides, so that it usually breaks oil at the back, usually along its cleats or cleavage iacings, by its own weight. The second kerl? cutter also adapted to return to its original position preparatory 'toentering the kerl2 again with the first kerf cutter.` which latter is preferably a bottom kerf cutter.

The cooperating kert' cutters are also ol my if fit) ico

adapted for simultaneous operation, as when i working from a loose end of the vein, one cutter can cut a bottom kerl? and the other a practically parallel kerf thereover, thus severing the body of coal attop and bottom, which will usually cause the coal to break at the back along its cleats, and to fall of its own weight as the kerfs are extended.

The machine by performing the two operations justdescribed can first enter the coal vein, or other vein, head on, and then by `lateral or sidewise travel, that is, at right angles to such head-on travel, it Will have formed and .will be working on its own loose end, and 'can then continue to operate across the face` of the work in the manner last described. i

In entry work, where the machine iS always working head on, it effects or ac complishes the complete work of entry driving, cutting` a lierf at the bottom, upone side, across the top, and down theother side ofthe entry. The coal thenbreaks at the back across the cleats, and falling upon the conveyer is run bark and delivered to a car behind. The machine thus remains at the face ofV the entry and is continuously engaged in excavating or driving the en try, and needingivery little attendance or supervision.

More in detail and' as preferably embodied, a rectangular frame is provided having a chain cutter runningthereabout, the frame slidingr on the mine floor and the cutter cutting a bottom kerf into which the frame is drawn by suitable mechanism as the cuttingprogresses. lVithin the frame is asecond cutter, preferably a rotary bar cutter, lying ornested along and within one side of the frame. When the lower lierf has been cut, the second cutter is Within the kerf, and is then putv into operation to cut akerf from thebottom lcerfupwardly, thence horizontally above the bottom kerf and then downwardly again to the bottom kerl. This will usually cause the body of coal so delned or partly segregated tok break` on its back cleats and to fall of its own` weight. A conveyer is preferably within the frame to receive and to convey away the dislodged coal.

The second herf cutter already referred to, aswembodied, is a rotary bar cutter lying within one side of the fra-me carrying the bottom lierf cutter chain. cutter is preferably carried upon guides located on the outer end of the cutter frame, the cutter bar extending inwardly ,therefrom., The mounting for the cutter bar is moved or progressed along these guides, the cut-ter bar in the meantime rotating at a high speed to cut the kerf.

The guides are preferably shaped to guide the cutter bar first upwardly, then horizontally, and then downwardly again toward the bottom kerf. Means are also provided for returning the cutter bar after it has completed its kerf to its original place within the frame. Also, a motor is preferably This rotary barr structions, and functions already destribed,`

andin addition thereto features, constructions and fiuictions which will be described and explained at a laterpoint herein.

As heretofore stated, the `illustrated embodiment of my present invention is shown applied to the bottom lierf cutting and conveying machine of my said application Ser. No. 302,929. Describing first certain parts of my saidfornier machine, a frame l is provided which preferably serves as the general frame of the machine and also as the sup port and guideway for a cutter chain, constituting the preferred form of kerf cutting means. The relative dimensions of the machine are immaterial so far as concerns eertain features of the invention, but for certain classes of work, such as entry driving or other narrow work, the frame is of a width such that the lrerf cutter will under cut the entire width of the work, the machine in such case being driven or fed to the work in the forward direction only. The machine is also proportioned in` such case so as `to under cut to the most advantageous depth for the particular work or conditions where used.

lVith these considerations in view, there has been represented on the accompanying drawing a frame composed of two halves which may be held in associated relation. One-half, that at the bottom in Fig. l, consists of the endmembers la and l, which are tied together with the lengthwise members l and 33: a cross-plate 10:2 serves as a stilfener, and as an enclosing housing for certainv of the operative mechanism. The ot-herportion of the main frame consists of the `end members GQ `and ld, which are held together by the lengthwise sections G2 and 36: a cross member 63 serves to support certain of the operative elements and to assure rigidity to the frame. In addition thereto. the two sections ofthe main frame are closed at the bottom by sole plates and at the top b v cover plates as will be described hereinafter. These two halves are held together in any suitable manner, for example by latches and by the chain itself as will be described further in detail.

As embodied, the cutter chain :Z passes entirely about the exterior of the .frame l., running in a guideway l fornied in the frame. While the machine requires relatively little lll) Hill

lUl

handling or shifting,` to facilitate the same, and for shipping it or moving it from one place of operation to another, and especially to so facilitate its handling in thin seams or veins, the frame is preferably madey in two sections7 which are preferably self contained, and are adapted to rest side by side on the mine bottom, and are fastened together so as to constitute a unit or integral mechanism. As so constituted, one section or unit preferably contains the longitudinal conveyer and the other section or unit containsfthe cross or transverse conveyer ,and the motor. The placing of the sections side by side and fastening them together automatically connects the mechanisms of the two parts or sections so that they are driven from a commonmotor. a

Referring more in detail to the drawings, the *cutter driving means comprises two sprocket wheels f1 and 5, located preferably at the rear corners of the frame 1. yThese sprockets are horizontally arranged and their teeth 6 are in mesh with the links of the cutter chain 2, and their shafts 7 and S respec tively, are journaled in bearings in the frame, as shown at 9 and 10 in Figs. 2 and 6.

The embodied form of driving means for the sprocket wheels l and 5 comprise connections from a single motor with slip mechanisms included to compensate for sudden variations in load or strain. Referring 'to the driving mechanism in detail, a pinion 12 is in mesh with a crown gear 13, formed on the undersideof an upper integral part of sprocket wheel t which construction permits the sprockets l and 5 to be driven in opposite directions from a common drive shaft.

Pinion 12 is xed to a shaft le journalled in bearings 15, 16 and 17 in one of the frame sections. This shaft 14C is formed with a friction disk drive or connection 18 between its two ends, which may he of usual construction, with a spring 19 coiled about the shaft and working against a collar 20 on the shaft. This spring urges the friction plates of the connection 18 together to establish a driving element. Since the particular form of friction drive is immaterial, it need not be described in greater detail. The drive for the other cutter chain driving sprocket wheel includes a pinion meshing with crown gear 26 formed on the side of sprocket wheel The pinion 25 is fixed on a shaft 27 which is journalled in bearings 2S and 29 supported on the frame or unit of the sectional frame. A friction disk device 30 is provided in the shaft 27, which may be of usual construction, and having a spring 31 coiled about the shaft and working against a collar 32 on the shaft. This device 3() likewise may be of any form to assure a frictional drive with possible slip in casel of great strain and need not be described in greater detail;

Vclutch Means are provided as embodied for driving the chain driving sprocket wheels together, when the frame is made in sections, by connecting their shafts to turn together. Shaft 27 journaled in the inside reach 33 of itsl section of the frame with a squared end lslprojecting from the fran'ie. @haft lil has` iin-enlarged end journaled in the inside reach of its section of the frame, the. enlarged end 35 being socketed to receive the squared end B4: of shaft 2T when the two sections of the frame are fastened together side by side,

Means are provided for driving the cutter and the sprocket `wheels and," their shafts, and as embodied said means comprise u motor 4l0, having a pinion eil fixed on its shaft. linion lllv meshes with an idler gear Ll2, jonrnaled on a bearing 39, which idler, meshes with a gear wheel 43, which gear wheel is loose on the shaft Fixed to the hub of gear wheel 43 is one member lsof a clutch. the other member il5 of the being splined. and longitudinally slidable on thrift .il in the usual manner. This clutch simultaneously throws in or out hoth the si'n'ocket wheels 4l and, 5, each sprocketl wheel having a frictioii or slip drivel between it and the clutch, as already desrribrd. A'jy throwing the clutcli sie, lin or out, the cutter chain 2, may be driven or stopped, while each drive for the chain is for this purpose the machine is moved bodily by two cables, and in the embodied arrange ment jacks i6 and l-T are fastened in nppropriate locations at the face of the work, and the cables i8 and 49 are made fast thereto and are wound upon drums mounted upon and driven by the machine.

In the present machine, the drums and 51 are driven from the motor d0, which also drives the cutter chain. A shaft 52 is journaled in bearings 53 and 554-. fastened rigidly "ith regard to the machine frame l, and lined on this shaft 52 is a gear wheel 55. which gear wheel meshes with the gear wheel d3 on shaft 1d. rlhe two winding drums 50 and 5l are lined to shaft 52 at either end thereof, and the cables from the nella and el? are wound upon these drums, respectively. The machine is preferably mounted on a plurality of shoe pla es 5th the bottoms of which are round so that the machine will slide readily over the bottom in any dirertion.

Guiding pulleys 5T and 58 are mounted on `the machine frame at suitable points, for

directing the pull of the cables on the niallt chine.v As shown, they are arranged to move the machine forwardly, as in entry work or other narrow work. They may be arranged, if desired, to drive or advance the machine sidewise, as might be required at times in breast or room work, or in long wall work. or the like. With this mecha` nism constructed and arrai'iged as described7 Vthe cutter chain and the advancing means for the machine are operated together and simultaneously from the common motor,

Gear wheel 55 is preferably inclosed in a housing GU, which is formed in the top 6l of a casing inclosing the motor, the sprocket wheels and other drivingl parts. All the operating mechanism is inclosed in this casing to protect it `from loose coal, and also from the dustso far as possible. The casing is formed by the top plate (il fitting on the top edges of the frame7 by the shoe plate 5G by the frame members Ga. by the plate and by a vertical wall t'iii between the driving mechanism and the conveyer.

,ln the embodied form. a transversely arranged conveyer is arranged at the inside or toward the front of the machine as represented in Fig. l0 and correspomiing to the right hand side in F ig. l, and in front of the motor and driving mechanism already described, upon which conveyor (he dis lodged coal fails and whereby it is passed across in front of the driving mechanism and then, by cooperating conveying means, alongside of the driving mechanism to the rear and to any desired or suitable loading mechanism or devices. i

In such embodied mechanism, an endless conveyer (58 runs over an idle roller 70, 1ocated at the inner end of the conveyor and journaled in the machine frame. ln the .nullliple unit or sectional machine, this conveycr extends entirely across its section and discharges on to the longitudinal conveyor located in the other unit or section. At its oppositel end. conveyer (i8 passes over a driving roller (il).

ln the present embodied forni. the shaft 7l of roller (it) is journaled in the machine frame and .is driven through a pinion 82 fixed on the shaft. liiicshing with pinion S2 is a gear 83 fixed on a shaft TT journaled in the frame. Preferably interposed in shaft T7 is a friction clutch or slip drive 72. Fixed to the opposite end of shaft 'Ti is a bevel gear 7l, which meshes with a bevel gear T5, which is fixed Von the shaft of piuion 9G which pinion is in the driving train for the longitudinal conveyor 8G, later to be described. The drive for the cross con; veyer 68, as just described, is different from the drive in my copending application S. N. 302.925), the mechanism haring been moved in the present embodiment of this machine to make room for the top cutter mechanism.

In Fig. la is shown the embodied locking device for holding the rotating bar cutter 120 against translatory motion. A locking block 120" placed between `guides lili-i `aud lt, having a bracket portion 120 about and outside of one of the guide lu'ackets '145. A bolt 120 is screwed through the bracket 120" and iuio they bracizet lfif. thus holding cutter bar lQti against traiulatoijv motion while permitting it to rotate.

As embodied, in the other section of ilu machine is mounted what may be termed the longitudinal conveyor, which conveys the dislodged coal to the rear, `aa already indicated. This conveyer 8G at its inner end runs over an idler roller S7, which is jour naled in the machine frame, and at its outer end the conveyer runs over a driving roller 8S, which is journaled in the machine frame.

The shaft S9 of this drivtai roller has a squared end 9U, extending from `the frame plate 353 like the head Sli. This squared head Si() fits into a socket inshaft 91 which is joiu'naliuiin frame plate fit. llihen the two general frame sections are fitted to* gether, the shafts will couple as shown in lilig. i. Shaft 5 )1 has preferably a frictifm or slip drive 512 and provided with a bear ing 9i. Fixed to one part of thisl shaft 5)]V is a gear wheel ilo, which is driven by a pinion Slt; mountial on a shaft 9T journalcd in bearing 98 and 99. Pinions 9G and shaft 9T are provided `with al ciutcli itil) which connects and disconnects the pinion and shaft. and serves also as the clutch for the croren conveyor as already described. Shaft 9i is shown asa continuation of the shaft of thil common motor L10, which in this embodiment drives the entire machine.

Suitable operating levers are provided for the clutches Li, and 10i), respectively` which levers project exteriorly from the casing to provide for the control of the clutches dur ing the imei-ation of the u'iachine. The levers may be of the usual kind. are pivoted on the machine franic and have yoked ends straddling the slidable clutch members in the usual manner, but are omitted from the drawing for clearness i allowing.

Additional means besides the cutter chain. for holding the sections together are shown as comprising aiatch iii. pivotcd ouonc section of the frame. and taking over a lug 11S on the other section of the frame i, a pin 119 fitting into a hole in the frame to loch' the holding means in engagement.

Up to this point and to include 115 the reference numeralsl are applied. except as hereinbefore noted, to the same or corre spending 'parts as in my prcvimis application Ser. No. 302,929.

The embodied forni of the second lierf cutter comprises a rotary cutter har 12u which is nested within the frame l as shown at the top of Fig. l and Fig. 3. This cutter bar, so far as concernsl most features of the illu lill

invention, iay be of any suitable or approved form, the cutter bar rotating about its own center while translatory movement is imparted thereto to make the lrerf cut. The cutter bar 120 is provided with teeth 121, and the har lies within the frame 1, between the frame and the head of conveyer 68, and longitudinally of the frame, in the direction of progress of the machine when making a head on bottoni herf out.

The siiipporting bearings 127 and 134 in which the cutter bar 120 is journaled for its own rotary motion are arranged on guides 123 and 143, along which these bearings are moved or slid to impart the translatory motion to the rotating cutter bar. These guides are formed and positioned so that as the bearings travel along the guides, the cutter bar is moved upwardly from the bottom herf toward the top of the vein, then horizontally across very close to the top of the vein, and parallel thereto andl to the previously cut bottom kei-f. Vhen the far side of the bottom kerf is justbelow i the cutter bar, the guides and bearings direct its travel downwardly until its kerf joins the bottoni lierf or until the coal or mineral therebetween breaks off.

As embodied the shaft 123 of thelcutter` har 129 is journaled in a sleeve or bushing 124 vhaving a shoulder 125 thereon. A collar 126 on shaft 123 lies between the bushing 124 and the shouldered end of the cutter bar to take. up wear and to preventv endwise play or movement of the cutter bar. A collar 122 is fixed on shaft 123 on the other side of bearing block 127 to prevent any moven'ient or play. j

Shaft 123 is journaled in a bearing 127, which rests upon and slides along a guide 123. The guide 128 has a projecting flange 129, the bearing 127 sliding on the top thereof and a roller 130 running on the bottom side thereof. The roller 130 is on a shaft 131, which is mounted in a downwardly extending arm 132 integral with bearing block 127. Thus the bearing block is held firmly and truly to the guiding face lof the guide 123. Y

Vlhe guide 123, as embodied, is arranged across the machine near its "rear end, and rises vertically from close tovone 'side of the frame 1` as best appears from Figs. l and 2, and extends vertically for very nearly the height of the vein,` then it is curved and has a horizontal reach nearly as wide as the machine, is then curved downwardly and has a vertically and downwardly extending reach. and is fixed also to the frame at this side (right hand side in Fig. 2). This gives the requisite path of translatory travel `to the cutter bar to cut the three-sided lerf already described.

The guide v123 is supported upon or preferably integral with its vertically disposed supporting plate 132. This structure is bolted or otherwise removably and rigidly fastened with regard to the frame 1, so that the n'iachine may be knocked down for storage or transportation.'

j At the end of shaft 123 is the other bearing or journal block 134 for critter bar 120. Shaft 123 is here journaled. in a sleeve or bushing 135 having an end flange 136 at its inner end. Surrounding bushing-135 is a sleeve or bushing 138 having upon its outer end a flange 139. Bushing 133 serves as a bearing and support for bracket 173 and shaft 171, as will be later described. Flange 139 is shouldered into the bearing or journal bloclr` 134. On shaft 123 are Vcollars 14O`and 141, bearing against the flanges 136 and 139, respectively, to preventend play of shaft 123 and to take up` wear. l

Bearing or` journal block 134 slides in guide 142, which has a bottom bearing face 143 and a top bearing face 144,.connected together bv brackets 145. Guide 142is of the saine form as guide 128, and is integral with or supported upon a vertically disposed plate 146. Plate 146 is disposed trans-k versely of the machine at or near its outer end, and is bolted to or otherwise detachably fixed with regard to frame 1, as already y described in connection withguide 128 andl its supporting plate 132, and as will be de scribed more particularly with regard to Figa 8 hereafter.

Means for rotating critter bar 120 during its translatory travel along guides 128 and 143 are provided.A As embodied, said means are driven from the general motor 40 which drives the entire machine. In said embodied form, (Figs. 2, 3 and 4) a bevel gear 150 is fixed on shaft 52. Meshing with gear `150 is a bevel gear 151, which is fixed on a vertical shaft 152. Shaft 152 is journaled in bearings 153 and 154, the formerl being stationary with regard to frame 1 yand the latter fixed to plate-146. Fixed to shaft 152' is a bevel gear 155, its hub resting on the top of bearing 154.

Meshing with pinion 155 is a bevel gear 158, fixed on a. horizontally disposed` shaft 159.` Shaft 159 is journaled in a bearing block 160, supported by and fixed to plate 146. Fixed to the other end of shaft 159 is a bevel gear 161. Rotatably supported on the bearing block 16 of shaft 159 is a sleeve 162 carrying a bracket 163. Bracket Ix.. i

sleeve 124 and bearing block 127.

bearing. lllasliers 168 and 169 may be used.

if desired.

lVithin bushing 164 and gear 170 is a shaft 171, splined to rotate With the gear and bushing but longitudinally slidable therewithin. The ,other end of shaft 171 and is journaled in a bearing 172 fixed to a bracket 17 3, which is tired to and supported by a collar 174, loosely journaled' on bushing138. Shaft 171 hastivo collars 175 and 170 fixed thereto on either side ot' its bearing 172, whereby shaft 171 is longitudinally lined but is rotatably journaled in the bearine. Fixed on shaft 171 is a. bevel gear 177 with which nmeshes a bevel 'geaif178 fixed on shaft 123 of cutter bar Referring novv to the embodied form of means for imparting translatory movement tothe rotating cutter bar, a loose collar 185 encircles shaft 128 between flange 125 of Collar 185 is provided `with two diametrally separated lrings `186 and 187, and fixed to rings 186 and 187cm the two ends of a: cable `cutterfbar 120 is to' be` traveled. 4 A similar the direction of rotation of drum 200`to f travel cutter bar 120 back through the kerl when it has been completed.

` The manner of operation ot the mechanism just described is substantially as tolloivs:- j

The machine may be regarded as lying in a bottom lterf and clutch 211 is thrown in and also clutch 201. ,Motor drives shaft 52, and through clutch 211 fand the other connections already described, shaft 171 is rotated and this rotates shaft V128 and cutter bar 120. At the saine timethe rotation of drum 200, lifts the cutter bar 120 vertically out ot the bottom lterf, the rotating bar cutting a kerf vertically upwardly from the bottoni kerf as the bar moves upwardly. The bearing blocks 127 and 134 Will travel `upwardly along the guides 128 and 134, at the left hand in Fig. 2, drawn by cable `1,88.

Bearing blocks 127 and 134 will pass about the' upper lett hand curved part, in Fig. 2, of guides 128 and 134, and will then travel along the horizontal top portion o1 the guides. This causes the cutter bar 120 `to cut, a horizontal top kerf substantially parallel fto the bottom lierf: When the upper right hand turn in the guides in Fig.

" 2 is reached, the bearing blocks turn and pass downwardly over the right hand vcrtical stretch of the guides in Fig. 2. The cutter bar thus cuts at the right hand sido a hert directed downwardly toward. and it necessary connecting with, the right hand end of the bottom korf.1 Many kinds of coalA will break oH before the two kerl's are connected.

The varying distance between the gear 178 and the gear 161 (Figs. 2. 3, 4 and 5) `as the cutter bar 120 travels along thc guides 128 and 184 is taken care oi" by shaft 171 sliding longitudinally in the sleeve 166 ot bevel gear 170. y

In Fig. 7 and in Fig. 11 the traveling culter 120 is shown at the top oit' the supporting and guiding frame. In Working in the inanner shown in Fig. 9 of cutting out a body of coal around all four sides, the cutter 120 hat combined rotary and translatory movement, as already set iorth in connection with the description of the meclianiain, the translatory motionV being indicated by the arrows in Figs. 0 and 10.

lVhen working in the manner indicated in Figs. 11 and`12, that is, when cutting the tup and bottom kerfs simultaneously, as might be done in long wall Work or in Working across the face of a room,` the cutter 120 is` held in fixed position against. translatory motion jat the top and preferably at or ucar the 'front of its guide frame as shown `in Fig. 11), While rotating to effect the cutting ot' the kort. The translatory movement in this case is effected by the movement ot the entire machine, as shown in Fig. 12.

The cables 48 and 49 are taetened to jacks; 110 and 111, and are wound upon the drums 50 and 51, ruiming also about suitably placed pulleys 57, 108 and 109. il. guiding rail or cable 112 may be used to keep tht` machine running in a true path. The nuullinc (bus travels forward making the bottoni aud top hert cuts n simultaneously. Ae the coal breaks otfalong ite clearagen. it drone upon the conveycrs and is delivered almigsidc the machine. ony the bottom ready for loadiue', tor conveying it away.

In Fig. 8 the traveling eide and fop cutter and its guides are shown :nijrretnblc tor height, together with the driving mechanism for the top cutter. shoivn divided transverfwlv. with bolt and slot Supporte 205, and coriesponfliug adjuntnients 20G are provided in the truiden* tor the bearings oit the side and top cutter 120.

The shaft 152 in this raro is slidabiy splined Within` the gear 151 to permit ilu: vertical adjustment just dcscrilmd. ll dcsired, the shaft 171 also may be provided withy a sliding joint. as shown in Fig. 151. ,In that figure, the shaft is cut intermediately ot its length and provided with a socket 208 within which tits a decreaeed end 207 of the other part of tbe shaft.

The plate 1110 iv:

A spline 200 con nects the parts of the shaft for rotation While permitting them to slide. A clamping screw 2l() is provided to clamp the shaft at the desired length to correspond tothe other adjustments described. In many cases the sliding connection of shaft 171 with bevel gear 170 vvill be found suiiicient torthis purpose also.

Means are provided tor connecting and disconnecting `the rotary cutter 120 trom its drive7 as for instance when the machine is cutting a bottom hert only. For this pur` pose there is shown a clutch 211 in shaft to2, operated by a clutch lever Q12, with a lever or clamp 218 ther-ct o The invention in its broader aspects is not limited to thespecitic melianisnis shown and described but departures may be made thereupon Within the scope of the accompanying claims without departing 'troni the principles of the invention and without sacricing its chief advantages.

lVhat I claim is l. A mining machine including in combination a bottom l-:ert cutter and a cooperating cutter cutting a vertice. rt beginning in the bottom hert and pregi mg upwardly and then horizontally above the bottom lrerf.

2. A mining machine including nation a bottom tiert' cutter and a cooperating cutter cutting a vertical kerl" beginning in the bottom kerl and progressing upwardly and then horizontally above the bottom kerf and then a vertical hert downwardly toward the bottom hert. A

3. A mining machine including incombi- `nation a bottom kert cutter and a cooperating cutter `cutting a vertical kort beginning in the bottom lrer'llv and progressing upwardly and then horizontally above the bottom hert' and then a vertical hert downwardly toward the bottom hert and a common drive operating the cutters either singlv or simultaneously.

4. A mining machine including in combination a bottom hert cutter and a cooperating cutter cutting a vertical hert and a horizontal hert' above the bottom kort, a trame for the bottom keric cutter entering the bottom kerf as it progresses7 the vertical cutter nesting within said frame.

5. A mining machine including in combination a bottom hert cutter and a cooperating cutter` cuttting a vertical ,hert beginning in the bottom lrert and progressing upwardly, a frame for the bottom lrerit cutter entering the bottom kerl? as it progresses, tbe vertical cutter nesting Within said frame.

tl. A mining machine including in combination a bottom kerf cutter and a cooperating cutter cutting a vertical kerl" and a. horizontal hert above the bottom korf, a trame Yfor the bottom kerl cutter entering the bottom kerl. as it progresses, the vertical cutter nesting Within said trame, and common in combidrive operating the cutters either singly or simultaneously.

7. A mining machine including in com. bination a bottom liert cutter, means :for

pressing it into the :taceot the vein as the lrert is cut, a vertical lrerit cutter entering the vein With the bottom korf cutter and means tor causing it then to cut upwardly through the `vein from the bottom korf.

8. A mining machine including in combination a bottom hert cutter, means for pressing it into the face o't the vein as the kerl' is cut, a vertical hert" cutter entering the vein With the bottom hert cutter and means for causing it then to cut upwardly through the vein from the bottom hert and then to cut horizontally above the bottom kerf. y

9. A, mining machine including in. combinationv a bottom kert cutter,'means for Dressing it into the tace `et the vein as the kerf is cut, a vertical .hert cutter entering the vein with ,the bottom kerl` cutter and means tor causing it then to cut upwardly through the vein from the bottom keri and y then to cuthorizontally above the bottom kerl and then to cut downwardly toward the bottom kort. p

10. Afmining machine including in combination a bottom hert ciitte1-,n1eans :tor messing it into the tace ot the vein as the kerl is cut, a vert-ical kerl cutter entering the vein With the bottom hert cutter and means for causing it then to cut upwardly` through the vein trom the bottom kei-t and common means driving the cutters simultaneously or separately. y

l1. A mining machine including in conlbinationka bottom hert cutter` a trame therefor, means for pressing the cutter land trame into the tace ot 'the vein as the keriis cut,a second cutter Within the 'l'rauu-x,` and .meansI t'or causing the second cutter to cut an upward kerit a'ttcr the iframe .is in the undercut hert.

l2. A mining machine including incombination a bottom kerit' cutter, a trame therefor, means for pressing the cutter and trame into the tace of the vein as the kerl is cut, a second cutter Within the trame, and means for causing the second cutter to cut an upward kert after the traine is in the undercut kerf and a motor within the trame and ccnnectionsv therefrom for driving both kerl cutters.

`13. A mining machine including in couibination a bottom kert cutter and a relativdy long cooperating cutter movable into posi- ;tions parallel to its lone; axis tor cuttingr a ifertical ,hert and a horizontal hert above the bottom hert, and a conveyor enteringthe kerf with the bottom hert cutter to receive the falling coal and to convey it away.

llt. A mining machine including in combination a bottom hert cutter and a rotating Cutter bar movable into positions parallel to its long axis tor cutting a vertical hert andl a horizontal hert above the bottom hert and then a vertical hert downwardly toward the bottom hert and a conveyer entering the hert cutter to receive the talling coal and to convey it away.

15. A mining machine' including in combination a bottom hert cutter and a cooperating cutter cutting a vertical hert and a horizontal hert above the bottom hert aY trame theretor entering the bottom hert an it pro gresses, the' vertical cutter nestingI within said trame, and a conveyor wit-hin the trame to receive the :falling coal and to convey it away.

16. A miningmachine including in combination a bottom hert cutter, a trame theretor, means tor pressing the cutter and trame into the tace ot the vein as thehert is cut, a second cutter within the trame, and means tor causing the second cutter 'te cut' an up ward hert atter the trameie in the undercut hert, and a cenveyerwithin the t ame and entering the bottoni hert to receive the talling coal.` l

17, A mining machine including in con bination a bottom hert cutter, a trame theretor, means tor pressing the cutter and trame into the tace ot the .vein as the hert is cut, a second cutter withinthe trame, and means tor causing the second cutter to cut an up ward hert atter the trame is in the undercut hert and then a horizontal hert above the V bottom hert, and a conveyer within the traine and entering the bottom hert to receive the talling coal. y

18. A mining machine including in combination a bottom hert cutter, a trame theretor, means tor pressing the cutter and tra-me into the tace ot the vein as the hert is cut, a second cutter within the trame, and means tor causing the second cutter to cutv an upward hert atter the trame is in the undercut hert and then a horizontal hert above the bottom hert and then a downward hert toward the undercut hert, and a conveyer within the trameand entering the bottom hert to receive the talling coal. 1

19. A mining machine including in combination a trame, a bottom hert chain cutter running therein. and a rotary bar cuti er `within the trame.

A mining macl nne including in combination a` trame, a. bottom hert chain cutter running therein, a, rotary bar cutter within the trame, and a conveyer with the trame.

91. A mining machine including in combination a, trame, a bottom hert chain cutter running therein, a rotary bar cutter within the trame, and a conveyor within the trame and a motor within the trame tor driving the cutters and the conveyor.

22. A mining machine including in combination a trame, adapted to enter the bottom hert, a bottom hert chain cutter running therein, and a rotary bar cutter within the trame.

A mining machine including in combination a trame adapted to enter the bottom hert, a bottom hert chain cutter running therein, a rotary bar cutter within the trame and a conveyor within `the trame.

lfll. A mining machine including in combination a trame adapted to enter the bottom hert, a bottom hert chain cutter running therein, a rotary bar cutter within the traine, a conveyor within the trame` and a motor within the trame tor driving the cutters and the conveyer.

A mining machine including in co1nbi nation a trame adapted to enter the bottom hert, a bottom hert cutter running therein, a rotary bar cutter within the trame, and means tor rotating the bar cutter and tor progressing it upwardly to cut a` hert upwardly trom thc bott om hert.

236. A mining machine including incombination a traine adapted to enter the bottom hert, a bottoni hert cutter running therein, a rotary bar cutter within the trame and moans tor rotating the bar cutter' and tor progressing it upwardly to cut a hert up wardly trom the bottom hert and tor then progressing it horizontally tocut a herf above the bottom hert.

2T. A mining machine including in combi nation a` trame adapted to enter the bottom hert, a, bottom hert cutter running therein, a rotary bar cutter within the trame, means tor rotating the bar cutter and tor profigreeeing it upwardly to out a hert upwardly trom the bottom hert and a motor within the trame tor driving either or both cutters.

S28. A miningmachine including in combination a trame adapted to enter the bottom hert, av bottom hert cutter running therein, a rotary bar cutter within. the trame, means tor rotating the bar cutter and tor progressing it upwardly to cut ahert upwardly trom the bottom hert, and tor then progressing it horizontally to cut a hert above the bottom hert and then downwardly toward the bottom hert and a motorwithin the trame tor driving either or both cuttere and said progreseing meana y 29. A mining machine including in combination a bottom hert cutter and a cooperating cutter cutting a vertical hert and a horizontal hert above the bottom hert and a trame theretor entering the blziiioni hert as it progresses, the vertical cutter nesting within said trame and means 'lor returning the vertical cutter' to itsplace within the trame.

30. A mining machine including in combination a bottom hert cutter and a cooperat ing cutter cutting a vertical hert beginning in the bottom hert and progressing upward`- y ly a trame theretor entering the bottom hert lll( meat/o1 as it progresses, the 'vertical eutter nesting within said traine and means tor returning the vertical cutter to its place within the trame.

3l. A mining machine including in combination a bottoni hert' cutter and a eoopemitii'igI cutter euttinga vertical hert beginning` in the bottom hert' and progressing upwardly and then returning through the hert it has out.

3:32. it. mining` machine including in Coinbination a bottom hert' Cutter and a coop- Lei-ating cutter cutting a vertical hert begin tiling in the bottom hert and progressingupwardly and then horizontally above the bottom hert" and then returning through the hert it has out. f V

A. mining machine including in coinbination a bottom hert Cutter and a cooperating cutter Cutting a vertical heriibeginning` in the bottom hert and progressing upwardly and then horizontally above the bottom hert and thena vertical herl downwardly toward the bottom hert` and then returning through the hert' it has eut.

34. A mining maehine'ineluding in combination a bottom hert' Cutter, means tor pressing it into the taee ot the vein as the hert out, a vertical hert cutter entering` the vein with the bottom hert' cutter and means tor causing it then to out upwardly through the vein from the bottom hert7 and to return through the hert it has out.

35` it miningmaehineineluding in coinbination a bottom hert cutter, a frame therefor7 means tor pressing the cutter and frame into the tace of the vein as the hert is eut` a second cutter within the `frame, and means for causing`- the second Cutter to eut an upward hert atter the trame is in the undercut hert, and to then return through the hertl it has eutinto the trame.

3G. A mining machine ineludiney in oombination a trame adapted to enter the bottom hert, a bottom hert Cutter running therein, a rotary bar cutter within the frame, and means for rotating the bar cutter and for progressing it iiipwardly to eut a hert upwardly from the bottom hert and to then return through the hertit has eut into the frame,

37. A mining machine including in oombination a frame adapted to enter the-bottom hert7 a bottom hert cutter running;I therein. a rotary bar cutter within the trame, and means tor rotating` the bar cutter and tor progressing it upwardly to out a hert upwardly from the bottom hert and ttor then progressing` it horizontally7 to eut a hert above the bottom hert and to then return through the hert it has eut into the frame.

j n ininii'ig machine including); in oombii'iation a bot-tom hert cutting chain, a frames*supporting and guiding it and adapted to enter the hert as it is made a second hert Cutter' supported by the traine and entering the bottom hert therewith7 and ineens for imparting Cutting and translatory movement to said second cutter when in the hert. i

89. A mining machine including` in com bination a bottom hert cutting` Chain7 a frame supporting and guiding it and adapted to enter the hert. as it made, a second hert cutter supported by the traine and entering the bottom hert therewitlu means for iinparting` cutting and translator-y movement to said second eutter when in the hert and a conveyor within the :trame and entering` the bottom hert therewith to receive the falling coal and to convey it away. Y

40. A mining` machine includingl in oombination a bottom hert eutting Chain, a traine supporting and guiding7 it, means for fort ing` the trame and Cutter into the face of the vein, a rotary bar Cutter within the trame and entering the bottom hert therewith, a guide and support for the, bareutter mounted on the outer end or" the trame having horizontal and vert-ical reaches, and means tor rotating the bar cutter and for moving it along said guide and support.

In testimony whereof, Iliave signed my name to this specification.

RICHARD PEALE, 

